Car-axle.



`UNITED STATES PATENT can-.funnel` `To all Vu-iom 'it 4maf-y concern:

Be itknown that I, MARVIN H. BULLARD, a citizen of the United States,residing at Ossian, in the county of llVinneshiek and State of Iowa,have invented new and useful Improvements in Car-Axles, of which Vthelollowing is aspeciication.

My invention relates to car axles, and its primary object is theprovision of an axle constructed to 'permit one wheel to revolveindependently of the other, thereby preventing the slipping of the innerwheel on a curve.

A further object of my invention is the )revision of a car axle whichissimple, durable and eilleient, and whichcan be manufactured and soldat a comparatively low cost.

With the above and other objects in view, the invention consists in theconstruction, combination and arrangement of parts hereinafter fullydescribed, claimed and illustrated in the accompanying drawing, wherein:

Figure 1 is a view in side elevation of a car axle constructed inaccordance with my invention. Fig. 2 is a sectional view taken centrallyand longitudinally through the casing of the axle, and Fig. 3 is asection on the line 3-3 of Fig. 1.

Similar numerals of reference indicate the saine parts in'the severalfigures 0f the drawlng.

The axle comprises two sections consisting of annular enlargements lupon which the wheels are adapted to be shrunk, journals 2 adapted to bereceived by the journal boxes suspended from the car truck, reducedtapered extensions 3 and annular collars '-l, the collars being arrangedbetween the enlargements and the reduced extensions 3. The reducedtapered extensions 3 are received by a casing 5, which is tapered tocorres ond to the taper of the extensions and whic 1 abuts Specificationof Letters Patent. Application led February 29, 1908. Serial No.418,548.

Patented Aug. ateos. j

at its ends against the collars 4 to'retainthe wheels 1n proper relativespaced relation. The ends o the casing 5 are provided with annularflanges 6 of a diameter equal to the it over the collars 4 and flanges 6to retain the extensions 3 in the casing, and each consists of sectionsprovided with flanges 8, through which bolts 9 pass to secure thesections assembled. The extensions 3 of the axle are adapted to freelyrevolve within the easing 5 independently of the other, therebypreventing the slipping of the inner wheel when the train is' passing acurve.

From the foregoing description taken in connection with the accompanyingdrawing, the construction and .mode of operation of the invention shouldbe understood without a further extended description.

Changes in the form, proportions and minor details of construction maybe made within the sco e of the claims without departing from tliespirit or sacrilicing any of the advantages of the invention.

Having fully described and illustrated my invention, what I claim is:

' A car axle comprising sections includi tapered portions and collars, acasing adapte to receive the tapered portions and abut against thecollars, said casing being r0- vided with annular flanges, caps adaptegt0 engage the flanges and collars, said caps being constructed ofsections provided with flanges, and bolts passing through the flanges tosecure the sections assembled.

In testimony whereof I allix my signature in presence of two witnesses.

. MARVIN H. BULLARD.. lVitnesses:

C. BULLARD,

FRED J. FIGGE.

diameter of the annular collars 4. Caps 7"\\

